TY - GEN
T1 - NbAl intelligent material through mechanical alloying and spark plasma sintering
AU - Chinniah, Karuna
AU - Kang, Yan Sheng
AU - Kawasaki, Akira
PY - 2005/1/1
Y1 - 2005/1/1
N2 - An intelligent material Nb-Al, expected to produce intermetallics phase instantaneously to stop crack development upon collision with sub-centimeter sized hypervelocity space debris, is researched. Intermetallics-free Nb-Al powders are produced through mechanical alloying (MA) and densification achieved through spark plasma sintering. Nb-Al powders are mechanically alloyed using planetary ball mill using agate and zirconia pot. Rotation speed and milling time is changed systematically to form intermetallics-free critical MA powder. A state of ultra fine intermetallics-free Nb-Al powder is produced. Intermetallics-free MA powder with fine Nb in Al matrix with most minute average particle size is utilized and sintering was carried out in vacuum with axial pressure increased up to 1.5GPa. The sintered compacts are then subjected to test such as XRD profiling, FE-SEM observation and mechanical properties testing such as hardness, etc.
AB - An intelligent material Nb-Al, expected to produce intermetallics phase instantaneously to stop crack development upon collision with sub-centimeter sized hypervelocity space debris, is researched. Intermetallics-free Nb-Al powders are produced through mechanical alloying (MA) and densification achieved through spark plasma sintering. Nb-Al powders are mechanically alloyed using planetary ball mill using agate and zirconia pot. Rotation speed and milling time is changed systematically to form intermetallics-free critical MA powder. A state of ultra fine intermetallics-free Nb-Al powder is produced. Intermetallics-free MA powder with fine Nb in Al matrix with most minute average particle size is utilized and sintering was carried out in vacuum with axial pressure increased up to 1.5GPa. The sintered compacts are then subjected to test such as XRD profiling, FE-SEM observation and mechanical properties testing such as hardness, etc.
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M3 - Conference contribution
AN - SCOPUS:84901918823
SN - 9781899072187
T3 - Euro PM 2005: Powder Metallurgy Congress and Exhibition
SP - 85
EP - 90
BT - Euro PM 2005
PB - European Powder Metallurgy Association (EPMA)
T2 - European Powder Metallurgy Congress and Exhibition, Euro PM 2005
Y2 - 2 October 2005 through 5 October 2005
ER -